TX & RX consider slow charging. Rx you could use 1 hr. Of course lipo you should follow the lipo recommendation and most of the time thats going to be 1C or one time the capacity and so to charge your 150mah or .15A lipo select .150 or closest setting. Alot of time you will find that people charge higher then 1C and when properly balanced and using proper charger this is also fine.

In the case of 1 cell lipo you do not need to balance. Also if you check the stock charger for that 1s lipo you may find that the stock charger was already charging at a higher charge rate and you can do so with yours.

Hi
I have the Passport and the Passport Ultra. I think it is a good charger, scroll wheels are a bit annoying, I have used mine for 1 season and it works well. Make sure you double check all settings before hitting start. The feature I wish it had was a storage charge setting. LiPos are best stored at 50% charge. If you store a LiPo at full charge or low charge they will tend to wear themselves out over time. Also dont ever bring the LiPo below 3v per cell. LiPos are great but can be dangerous if these strict procedures are not followed.
VP